For Whom the Beat Tolls (a play on the Ernest Hemingway novel 'For Whom the Bell Tolls', which itself is drawn from "Meditation XVII" of Devotions upon Emergent Occasions, a series of essays by metaphysical poet John Donne) is the eighth studio album by rapper Canibus, released through Mic Club Music on May 29, 2007 in the United States and June 5 worldwide. It features the new "Poet Laureate Infinity" concept, which involves mixing 200 bar layers with corresponding ones in order to create various subject matter, rhymes and overall sound. The album leaked on the Internet on June 4, 2007. According to Canibus' DJ, Puerto Roc, the album has sold 60,000 copies as of October 2007.